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Volatile substance abuse--post-mortem diagnosis.

Sarah M R Wille1, Willy E E Lambert

  • 1Laboratory of Toxicology, Ghent University, Harelbekestraat 72, B-9000 Gent, Belgium.

Forensic Science International
|June 3, 2004
PubMed
Summary
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Volatile substance abuse is a significant cause of preventable death in young people. Proper analytical methods are crucial to avoid false results due to analyte loss during sample handling.

Area of Science:

  • Forensic Toxicology
  • Analytical Chemistry

Background:

  • Volatile substance abuse is a global issue among children and adolescents, aiming for euphoric effects.
  • Inhalation abuse, while having a low death-to-incident ratio, remains a critical, preventable cause of mortality in youth.

Purpose of the Study:

  • To highlight the importance of proper analytical procedures in investigating volatile substance abuse.
  • To emphasize the challenges and potential pitfalls in the analysis of volatile compounds in post-mortem cases.

Main Methods:

  • Analysis of volatile organic compounds in post-mortem matrices (blood, urine, tissues) using gas chromatography.
  • Extraction techniques including static/dynamic headspace, pulse-heating, and solvent extraction.
  • Determination of specific metabolites like trichloroethanol and trichloroacetic acid in urine.

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Main Results:

  • Volatile compounds are typically analyzed using gas chromatography after various extraction methods.
  • While urine metabolites like trichloroethanol are sometimes detected, their relevance in post-mortem cases is debated.
  • Significant analyte losses can occur during sampling, handling, and storage, leading to inaccurate quantitation.

Conclusions:

  • Accurate analysis of volatile substances requires meticulous sample collection, storage, and handling.
  • Researchers must exercise caution when interpreting results due to the potential for analyte degradation and loss.
  • Awareness of these analytical challenges is essential to prevent erroneous conclusions in forensic investigations.